I have an old distrest belt sheath with a button flap for a folding knife that just happens to fit my spare mag. It's open carried left side and I've had no comments about it. Doesn't look evil and you'd have to look real close to see that ain't a knife in there.
Yeah, thats pretty much was I was talking about
For a Camas PD officer, he wanted a mag pouch for off duty that would look inconspicuous. So we made what could've been a mag lite or knife sheath out of some really nice leather(black with a nice shine to it). Also made a cell phone carrier for his duty belt